Combined type-writing and computing machine.



F. A. HART. COMBtNED TYPE wnmwa AND COMPUTING MACHINE. APPLICATION FILEDMAY 16, 1914.

1,281,953. Patentd Oct. 15, 1918..

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F. A. HART.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY I6. I914 1,281,953. Patented Oqt. 15, 1918.

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INVENTUW WITNE8SE$ 34M @MMM W Z I W BY ATTOENEY.

F. A. HART.

COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY 16, I914.

1,281,953. Patnted Oct. 15, 1918.

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F. A. HART.

comsmw TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY I6. 19H.

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COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY 16. 1914.

1,281,953. Patented Oct. 15, 1918.

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APPLICATION FILED MAY 16. 1914.

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F. A. HART. IOMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY I6, I914 Patented Opt. 15, 1918.

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ATT O F. A. HART.

COMBINED TYPE WRITING AND COMPUTING MACHINE. APPLICATION FILED MAY 16.I914.

1,281,953. Pate nted Oat. 15, 1918.

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I F. A. HART. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAY I 6., 19M.

Patented Oct. 15, 1918.

9 SHEETSSHEET 9.

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UNITED sTA'rEs PATENT OFFICE. I

FREDERICK A. HART, OF NEWARK, NEW JERSEY, ASSIGNOR, BY MESNEASSIGNMENTS,

TO UNDEBWOOD COMPUTING MACHINE COMPANY, OF NEW YORK, N. Y., A CORPO-RATION OF NEW YORK.

COMBINED TYPE-WRITING AND COMPUTING Macrame.

Specification of Letters Patent.

Patented Oct. 15, 1918.

Application filed May 16, 1914. Serial No. 838,930.

To all whom it may concern: I

Be it known thatI, Fnnonnrox A. HART, a citizen of the United States,residing in Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Combined Type-Writingand ComputingMachines, of

(now Patent No. 1,270,411, dated June 25,

1918), and like the present application, entitled, Computing machinesand combined typewriting and computing machines; and like saidco-pending application, this application relates particularly to theimprovement of combined typewriting and computing machines of the typedisclosed and" broadly claimed in Letters Patent of the United Statesissued to Hans Hanson, No. 816,319 of date March 27, 1906, No. 905,421

' of date December 1, 1908, and No. 905,422 of date December 1, 1908. p

The present invention is directed chiefly to the modified or improvedform of the decimal order selecting mechanism of my companionapplication, and it comprises a plurality of decimal order selectingdogs, one for each register, a corresponding number ofregisterselectors, a common set of decimal order selecting-levers upon which theseveral decimal order selecting dogs operate in succession, and a set oftransposing bars subject to said selectingwlever and common to theseveral registers. The register selectors serve to determine on .whichregister the decimal order select-ing mechanism shall be operative, andthe selecting action of the latter is transmitted to the variousregisters, through the said common so-called transposing bars.

In the accompanying drawings which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings: Figure 1 is a view in side elevation withsome parts broken away, showing the typewriting and computing machine.

Fig. 2 is a plan view ofthe computing machine proper, with some partsbroken away, and with some parts removed.

Fig. 3 is a. vertical section, taken from the front toward the rear ofthe computing machine, approximately on the line 833 m of Fig. 2.

Fig. 4 is a plan view with some partsbroken away, showing certain of therear parts of the typewriter frame and typewriter carriage, andparticularly illustrating the single group of upper decimal orderselecting levers, and the so-called register selector or registerselecting mechanism.

Fig. 5 is a rear elevation of the parts shown in Fig. 4, some partsbeing broken away.

Fig. 6 is a plan view of certain of parts shown 'in Fig. 4:, showing thesame on' a larger scale. I

Fig. 7 is a vertical section taken on the line as 00 of Fig. 6.

Fig. 8 is a section taken on the line 00 m of Fig. 7.

Fig. 9 is a section taken on the line m w of Fig. 7.

Fig. 10 is a detail with ome parts broken away, showing a guide for theupper ends of the lever connecting rods of the decimal order selectingmechanism, of the punctuation-space key-locking mechanism, and of theregister selecting mechanism.

Fig. 11 is a fragmentary plan view showing particularly the registerbars and lower portions of the register selector and decimal orderselecting mechanism, including the so-called transposing bar.

Fig. 12 is a vertical section taken on the to Fig. 12, but illustratingdifi'erent positions of the parts.

Fig. 14 is a transverse vertical section taken approximately on the lineat w of Fig. 2, some parts being removed.

Fig. 15 is a diagrammatic view, showing the lower group of so-calledselecting levers.

Fig. 16 is a plan view of the machine,

Typewriter and computer case.

In the following detailed description, those parts herein shown, whichare identical with corresponding parts shown in my said companionapplication, will be intucated by the same characters that are appliedthereto in the said companion applica- F. tion.

The typewriter illustrated is a No. 5 Underwood, the construction andoperation of which are well understood, and hence, for the purposes ofthis case, will be but briefly noted.

Directing attention particularly to Figs. 1, 1 and 5, the numeral 1represents the typewriter frame, the numeral 2 the typewriter carriage,the numeral 3 the type bars, the numeral 1 the character keys, thenumeral 5 the numeral keys, the numeral 6 one of the shift keys, and thenumeral 7 the spacing bail or space bar. All of these ke s are ofcourse, spring held in their uppermost or normal positions.

The typewriter carriage 2 has a vertically movable supplemental frame 2,that is held for parallel movements by arms 8, connected to a rock shaft9, mounted in suitable bearings on the carriage 2. This supplementalframe or section of the typewriter carriage, carries the customaryplaten or paper sup porting roller 1-1, and by depression of either ofthe shift keys, it will be given vertical movement, through the usualconnections, not shown. The numeral 21 indicates the spring held linefeeding lever which is connected with the platen roller 14: in thecustomary way, through a pawl and ratchet device, not shown), so thatwhen the said lever is moved toward the right, the roller and paper willhe moved one step, as required for the line feed. The typewritercarriage is under spring tension froma suitable motor spring, notshown), and moves from right toward the left, with a step by stepmotion, under the control of a suitable escapement that is subject tothe key action.

In 1, the numeral 26 indicates one of several upwardly spring pressedtabulating keys which operate, in the usual way, to release thetypewriter carriage, for tabulating purposes; and the numerals 35, 36and 37, (see Fig. 5), indicate respectively, the adjustable tabulatingstops, the notched stop supporting bar and the cooperating scale of thetabulating mechanism.

All of the parts of the typewriter so far described are found in the No.5 Underwood, equipped with tabulating mechanism, and which as abovestated, is the typewriting machine illustrated in the drawings.

Although of no great importance to this application, because disclosedand claimed in my said companion application, it may however, be stated,that the depression of any tabulating key depresses also one of theshiftv keys 6 (as shown the right hand shift key), while the depressionof said shift key will not depress any of said tabulating keys; and thatthis is accomplished by means of an upwardly spring pressed bail 27pivotall connected to the typewriter frame 1, wit

- its transverse free portion underlying all of said tabulating keys;and by a link 28 pivotally connected to an extension 6" of said shiftkey and having a slot that is engaged by a stud 29 on one side of thebail 27, as

shown in Fig. 1. 4

The computer case upon which the typewriter frame is detachably mounted,and within or upon which, most of the parts of the computing mechanismare directly or indirectly mounted, is indicated by the numeral 30', andas shown, it is of rectangular box-like form, and is provided withvarious bearings arid shafts and other parts, that will be particularlynoted in connection with other groups of mechanisms. "1 The register.

For the purpose of independently listing and adding numbers in severalcolumns on a sheet of paper, the machine herein illustrated, like themachine illustrated in my companion application, is provided withseveral registers, but these are associated with decimal order selectingmechanism and with so-called register selecting mechanism, which as willhereinafter more clearly appear, constitute the main features of noveltyof this application.

These registers are, or may be, identical with the register disclosedand claimed in the patent of Hans Hanson, No. 905,421, dated December 1,1908, and hence, only a few of the parts thereof will be noted. Eachregister comprises a group of decimal order digit bearing wheels a, allas shown, mounted on the cross shaft (1.. On their hubs, the registerwheels a have loosely mounted gears connected therewith through ratchetand oneway ball clutches, not shown, and these gears mesh with the teethof underlying register bars, and are subject to the action of thelatter, when the so-called Operating carriage of the computer is movedforward. The register wheels are held against accidental movements byspring pressed levers a, mounted on a transverse rod a. On the parallelcross shaft a are mounted certain. wheels constituting parts of thetens-carrying mechanism, two of these only appearing in the drawings,to-wit, the six-toothed wheel a, and the three-toothed wheel a. Onanother cross shaft a, is mounted a series of gear segmentsor toothedarms a, which cooperate with-the parts of the shaft a in thetenscarrying action.

Unit bars and their connection to m'mzeral keys of the typewriter.

These devices are identical with those in my eo-pending application, anddiffer only in detail from the corresponding devices of the said HansonLetters Patent. By reference to Fig. 1, it will be noted that thenumeral keys 5 are provided with depending push bars I), that workthrough guide slots in the forwardly projectinrr flange of atransversely extended rectangular frame supported from the computer case30. As shown, the push bars I) are pivotally connected to couplingbrackets 6 which in turn are pivotally and adjustably connected to saidnumeral keys. jou'rnaled a-series of nine rock shafts b spring held intheir normal positions, and extending in a direction from front towardthe rear of the computer case. At their forwardly projecting ends, eachunderlying the lower end of one of the push bars 6, said rock shafts areprovided with arms I) that are adapted to be engaged by thecorresponding push bars I), when the corresponding key 5 is depressed.

Mounted for vert'cal movement in the frame 6 are nine so-called unitbars 6 that are parallel to each other and extend at a right angle tothe rock shafts b, or in other words, extend transversely of thecomputer case 30 and of the underlying register bars'c, presently to bedescribed. As shown in Fig. 18, the ends of the unit bars 6 work ingrooves 12 cut in the lower transverse end bars of the frame 11 and areI thereby held against lateral movements. Each unit bar I) is coupled toa corresponding overlying tie bar I), by a pair of bell-cranks b whichare loosely mounted on fulcrum rods 7) secured to the sides of the frameIf.

Each rook shaft 6 has a short arm I) (see Figs. 17 and 18) shown asprovided with a slotted end that engages a stud 6 on the correspondingtie bar 5. These arms 6 (see Fig. 1.7) are arranged on an oblique line,so that the numeral keys from In the frame are lower to higher orders,or in a direction from left toward the right, are coupled to, oroperative on, the series of umt bars located successively from the fronttoward the rear of the machine.

As shown in Fig. 18, 7) indicates coiled springs which yieldingly pullthe unit bars I) upward and normally hold the same and the cooperatingbell-cranks 7), tie bars b,

Fig. 18, that a very considerable port-ion of the downward movement ofthe depressed numeral key, is required to bring the connected push bar7) into engagement with the corresponding rock shaft arm b; and in thisconnection, it may be also noted that the upper arms of the bell-cranks6 are very short as compared with the lower arms thereof, so that a verysmall portion of the final downward movement of a numeral key isrequired to effect a considerable downward niovement of thecorresponding uni-t bar. The especial object of this construction is toprovide for very light touch and rapid successive move- 'ments of thenumeral keys, by depending very largely upon the momentum of the typebars to operate the units bars I).

For cooperation with other parts, to lock the numeral keys 5 in normalor in-operative positions under several difierent operations, a seriesof rockers or cam blocks 1) is provided, and these so-called rockers, asshown, are pivotally connected to the vertical front plate or side ofthe frame 6 and are arranged to work between a pair of steps 6 on thesaid frame plate. As shown in Figs. 17 and 18, there is but little playor space'between said rockers 72 and the stops I).

For cooperation with the said rockers I), to prevent the operation ofmore than one numeral key at a time, that is, to lock all other numeralkeys in their normal positions, or in positions in which'they cannot bemade to operate either the printing or computing mechanisms when any oneof the numeral keys is operatively depressed, each of said numeral keysis providedwith a depending lock stem that is arranged to be forceddownward between the underlying two adjacent rockers, and thereby takeup all play between the rockers and sto )s I). These lock stems Z)" areprefera bly individual members that work through slots I) intheforwardly project- .ing flange of the frame 6 and at their upper ends,are pivotally connected to coupling bracket-s b intermediately pivotedto the intermediate portions of the respective bars I), and adjustablysecured thereto by opposing suitable set screws. The adjustable couplingbrackets b and 5 permit of very accurate adjustment of the bars 6 andstems Z), in respect to th cooperating rock shaftarms 5 and rockers b,so that the precise relative times of action thereof may be properlyregulated. By reference to ig. 18, it will be noted that the lower endsof the stems b" will be engaged -with the cooperating rockers b beforethe corresponding bars I) will be engaged with the cooperating rockshaft arms I).

It may be further added that the play between the rockers b and stops 1)is only sufficient to allow one of the lock stems b" to be forceddownward between the said rockers at any one time.

The long upwardly extended arms of the bell-cranks g are pivotallyconnected to the rear ends of forwardly extended connecting links 9 thefront ends of which are attached, by slot and pin constructions g, tothe free ends of upwardly extended arms 9 rigidly secured to a rockshaft 9, that is mounted in suitable bearings on the end portions of theunit bar frame If. This rock shaft g has a forwardly curved lock arm g,the reduced free end 9 of which is adapted to be forced between two ofthe rockers b but normally stands in an inoperative position below thesame. When the said end 9 of the lock arm g is forced between the saidrockers b, all play between the rockers will be taken up so that no oneof the numeral keys can be depressed to any extent sufficient to causethe printing of a numeral in a punctuation space, as will be hereinlater more fully described.

Decimal order register bars, unit pins or preliminary 'IEP'I'GSflttLtZOMdcmces, opcratmg carriage and assoceated parts.

Attention is particularly. called to Figs. 2 and 3. For each registercomprising, as shown, nine digit bearing wheels, there is a series ofeight register bars, to-wit, one for each register wheel, except theregister wheel of highest order, which latter is at the extreme left.These register bars 0 extend from front toward the rear of the machine,below the unit bars I), and hence at a right angle to the latter, andare independently movable. At their forward ends, the register bars 0have toothed rack portions that mesh with the gears a of the respectiveregister wheels (1, and at their rear ends, said register bars areguided for longitudinal movements and are permitted limited verticalmovements, by a guide comb or slotted plate 0 that is rigidly secured,as shown, to a transverse bottom bar 30 of the computer case 30. Therear ends of the register bars are yieldingly held down by light coiledsprings 0*, best shown in Fig. 13. At their forward ends, said registerbars 0 slide over and are capable of a slight rocking action on afulcrum rod 0 supported by the register bearing brackets 30. Eachregister bar 0 at its intermediate portion, is provided with-a dependinglug c, and just forward of its guide comb 0. each register bar is formedwith a shoulder 0, the purpose of which will appear later on.

Each register bar 0 carries a series of nine vertically movable unitpins c preferably mounted in thickened central portions of said bars,and yieldingly held by spring pressed balls, not shown. When theregister bars 0 stand in their normal positions, their unit pins 0 willstanddirectly under the respective unit bars b, as best shown in Fig. 3,but lie far enough below the same, so that the depression of said unitbars will not engage the respective unit pins, unless the rear portionof a register bar is raised, by the decimal order selecting mechanism,in which case, the depression of any unit bar will force downward, intoset position, the corresponding unit pin of such raised bar. Thecomputer operating carriage or general operator, shown as made up of apair of laterally spaced rack bars a", side plates 0 rigidly secured tosaid rack bars, and a pair of transverse tie bars a and 0 is mounted tomove within the computer case in a direction from front toward the rear.The carriage bar a, hereinafter designated as the push bar, normallystands a little rearward of the rearmost line of unit pin a with itsforward edge at such elevation, that when the operating carriage ismoved forward, it will pass under the lower ends of such of the unitpins as have not been forced-downward or set, but will engage any andall unit pins of the several register bars which have been pusheddownward or set. As is evident, when the register bars are movedforward, into action on the register wheels, under the forward movementof the operating carriage, and by the action of the push bar a on theset unit pins, the register bars will be given differential movements,unless the unitpins of like value have been set on all of the registerbars. Under returning movement of the operating carriage, the bar 0thereof engages the depending lug 0 of the forwardly moved registerbars, and returns said bars to their normal positions.

Mounted in suitable bearings on the sides of the computer case 30 andextending above the register bars c, is an operating shaft 0" having atits right hand end, a rigidly secured operating lever a", see Figs. 1and 2, and having inside of the case 30, segmental gears 0 that meshwith intermediate gears, not shown, but which in turn mesh with the rackbars 0 of the operating carriage, =0 that the said operating carriagemay be moved forward and rearward by oscillatory movements of saidlever.

The means herein shown for imparting variable return movements to thetypewriter carriage, or in other words, for bringing the typewritercarriage to difierent desired normal positions, toward the right, underconstant or predetermined movements of the operating lever and of theoperating carriage of the computer, is identical with that disclosed andclaimed in my said companion application, and hence the parts thereofwill be briefly noted as follows:

-A flexible connection, such as atape a, is attached to the free end ofthe typewriter line feed lever 21, and is passed over a guide sheave ona lug c of the typewriter frame, and is then passed downward and securedto and adapted to be wound upon a grooved slack take-up wheel 0. Thewheel is suitably mounted in the adjacent side of the computer frame 30,and carries a spur pinion c that meshes withthe spur gear a, that isloosely journaled on the operating shaft o adjacent to the operatinglever 0 The operating lever 0 also carries a loose spur pinion a, thatmeshes with said gear 0, and is adapted to be engaged with a similarspur pinion c, which latter also meshes with said gear 0, and isjournaled in the outer extremity on its supporting'arm c, which asshown, straddles said gear a and is loosely journaled on the operatingshaft 0 Preferably, the'wheel 0 is under ten sion from a light. coiledspring (not shown), but which tends to rotate the same in the directionof the arrow in Fig. 1, so as to keep the tape 0 from slack. Preferablyalso, the supportin arm a" engages the pinion 0, under $11 cientfriction to prevent the said arm from being accidentally moved from anyset position on the gear a. However, the set arm e may be easily movedso as to set the pinion c in any desired position on the gear c 9,,andhence, normally any desired distance from the pinion c that is ,set inrespect to the pinion c-' stated, the nearer said pinion 0 1S normallycarried by the operatinglever 0 As is evident, when the operating levera is moved forward from its normal position, shown in Fig. 1, thetypewriter carriage will remain stationary in its position toward theleft, in respect to Fig. 16, until the pinion 0 runs into engagementwith the pinion c, whereupon the two pinions,

, by their opposing action or tendency to roing a new line.

set to the pinion a, the furthervtowa rd the rlght will be the positionto which the typewriter carriage will be returned, under a completeforward movement of the operattwo pinions or gears engaged with each 1other and with a third pinion or gear, will interlock, so that no one ofthe three can rotate in respect to the other.

Such unit pins 0 as have been pressed downward or set in one operation,for operative action on the register, must of course, be restored tonormal positions before start- The means shown for accomplishing thisresult is identical with that disclosed and claimed in my said companionapplication. The parts thereof, in so far as shown in the drawings,includes a pair oftransverse rods or shafts 0 that are extendedtransversely of the case 30 below the register bars, and at their endsare mounted in the sides of said case. For each register and group ofregister bars, there are loosely journaled on the rods 0, smallbell-cranks a, connected in pairs by sleeves a", and c0nnected forcommon movements, by links a. The upper arms of the four bell-cranks arepivotally connected to depending lugs of a unit pin restoring platform0, that directly underlies all the cooperating unit pins, when theregister bars are in their normal is held always in a true horizontalposition,

by said bell-cranks.

The front rod 0 serves as a rock shaft and is provided with a short arma that is adapted to engage a projecting arm a of the platform c. Whenthe arm 0 is moved upward into engagement with the arm a, it'will raisethe platform 0, and the latter will restore to normal positions, all ofthe set unit pins; and this is accomplished at the final part of thereturn movement of the operating carriage, and at a time when all unitpins are directly over said acting dog clearly described in the saidcompanion application. The platform 0 also constitutes part of the.so-called error correcting device. Of the other parts of this errorcorrecting device, only the lever 71 which is pivoted on shaft 10 andoperates on one of the bell-cranks 0., is shown. This lever 19 ispreferably subject to key mechanism, such as shown in my companionappli- -cation.

At the left hand side of each' series of register bars 0, is a zero baris, of the same construction as said register bars, mounted platform, bymeans of a spring held cam companion application, and not necessaryforthe purposes of this case to further consider.

Of the parts of the so-called register bar safety device, which is alsoclearly described in my said companion application, it is only necessaryfor the purposes of this case, to note the transverse bar it thereof,see Fig. 3, which is carried by arms t of the transverse rock shaft 6".

All the parts of this application so far described are identical withcorresponding I parts in my said companion application.

The register selector, decimal order selectz'ngmeehaniam and associatedpart-9.

In my companion application, for each register and cooperating set ofregister bars, there is a selectin dog f sometimes designated as adecima order selector, which is carried by the typewriter carriage, andthere is also a group of so-called selecting levers f for each registerand group of register bars. Also these several groups of se-- lectinglevers are arranged to operate through correspondin independent sets oftransposing bars, to li t the register bars, in succession, from lefttoward the right, under movement of the typewriter carriage from righttoward the left.

In my present machine, for each register and cooperating set of registerbars, there is a selecting dog f, but these selecting dogs are arrangedto operate, in succession, on a common set of selecting levers f andthis common setof selecting levers operates, through connectionssubstantially like thoseemployed in themachine in my companionapplication, on a set of transposing bars, which transposing bars inthis instance, however, are common to the several sets of register bars.To render the common set of transposing bars and common set of selectinglevers operative on the different-sets of register bars, in the properor desired order, or at different desired times, a so-called register.selecting mechanism is provided. This register selecting mechanismpreferably includes a cam block m for each selecting dog f, and which isalso carried by the typewriter carriage.

Inter-posed between ,the levers f are other levers of identically thesame construction designated by the letter 9. These levers g, of whichthere are two, constitute elements of the punctuation-space key-lockingmechanism.

In this improved machine, in addition to the levers f and 9, there areso-called register selecting levers m as shown, three 1n number, or onefor each register. These levers m are different in construction from thelevers f and g, and they cooperate with the so-called registerselectmgcams or register selectors m, to determine which one of the registersshall be under the control of the decimal order selecting mechanism, andthe numeral keys of the typewriter.

In the application of this improved decimal order selecting mechanism,the typewriter frame 1 is provided at its upper rear corners withrearwardly and upwardly extended laterally spaced arms f, that ri 'dlysupport the transverse rod f; and in ront of the arms f, a pair oflaterally spaced upwardly and rearwardly extended arms f are rigidlysecured to the rock shaft 9, to which it will be remembered, thevertically movable arms 8 of the vertically adjustable section 2 of thetypewriter carriage are rigidly secured. These arms f support a pair oftransverse rods f and f, the former of which has two longitu inallyextended grooves, and the latter of which has longitudinally spacednotches that correspond in the distance of their spacing, to theescapement movement of the typewriter carri e.

These selecting dogs f which are in a, irect line with each other,transverse of the machine, or in the dlrection of the carriage movement,so that they will operate in succession on the same levers f and g, arespring held in their normal positions and are pivotall mounted in therearwardly projecting en s of slip orting blocks or arms f, that areinde on out] pivoted .on the rod f and capab e of in ependent slidingand pivotal ad'ustments.

At their free ends, t e blocks f are provided with depending teeth f,see oc that engage notches of the rod f to said blocks against slidingmovements on the rod i .In arecess :of. each. block f, is a springpressed ball fthat normally e a the lower groove of the rod f, and ho dsthe said arm down with its selecting'dog f in position'for action on theforward ends of the levers f and 9, under the step'by', step movement ofthe typewriter carri from right toward the left. Under t e movement ofthe typewriter carria from left toward the right, said selecting gigwill move pivot-ally and pass under the forward ends of the levers f?and g. Byreferenoe to. Fig. 8, it will be noted that the selectin dog 7,at its upper end, is beveled so that it inclines in the direction of theoperative movement of the typewriter carriage, and it will also be notedthat the forward ends of the levers f and g are beveled in the samedirection for engagement therewith, so that the selectin dog will liftdirectly upward the engagef ends of said levers, under the operativemovement of the typewriter carriage.

The supporting blocks f, when moved pivotally upward, so that theirspring pressed balls f engage the upper groove of the rod f will be heldin a. position'to clear the levers f and g, and their selecting dogs fwill then, of course, be rendered inoperative.

Each block f is provided witha pointerf",

., lift the forward end of its cooperatin lever m and hold such lever insuch raise posi tion durin the whole period of time that thecorrespomfing selecting dog f is in position during the travel of thecarriage for action on any of the group of levers f and g. As in myPatent 1,270,411, Fig. 4, the arms f are connected to the case-shiftmechanism,

and in consequence when the case-shift mechanism -is operated orrendered effective, said arms f" descend, thereby rendering ineffectivethe denomination-selectors f and the selectors m which selectthe-registers or wheel roups. T v I As s own, the levers m have heads orlaterally bent front ends m, see Figs. 8 and 9, that are beveled in bothdirections of the travel of the typewriter carriage, so that the eitherdirection of travel of the typewriter carriage.

register selector or cam m acts thereon in It'will also be noted, seeparticularly Figs.

4 and 6, that the heads m of the levers m extendon' lines, that areparallel to the'carriage movement, but are offset orsetin differentpositions from front toward the rear ofthe machine; and that theregister I selectors or cams mare so located on the supporting blocksf',that they'c'an operate only on correspondinglevers m, or in other i ,byits own cam block or register selector m.

words, each lever m can. be actuated only To. support the group oflevers 'f, g and m, a pair of laterally spa-ced'bea-ring plates f arerigidly secured to the fiXed.support-' -.ing rod 7, and the upperportions of these plates f" are connected by two parallel rods f" and fupon the former of which, said levers f, g and m, are intermediatelypivown in Figs. 4, 6 and 7. These.

oted. The rod f acts as a stop to limit the downward movement of theforward ends of the levers f and g, and it is preferably notched toassist in spacing the said levers, which levers are primarily spaced bycollars or washers on the rod f. The forward ends of the levers f 9 andm are spring pressed downward by means hereinafter noted. s

The rear ends of all of the levers f 9 and m, are of the sameconstruction, and in like manner, rest respectively on the upper ends ofrods f, g and m The lower ends of the rods f, are connected to therearwardly extended arms of lower selecting levers f,- the lower ends ofthe rodsg, are connected to rearwardlyextended arms of bell-crank leversand the lower ends of the rods m are connected to the rearwardlyextended arms of bell crank levers m, see particularly Figs. 3, and 11to 14 inclusive.

.All of the levers f, g and m are pivotally mounted on a shaft f",rigidly supported by the rear portion of the case 30.

The upper ends. ofthc rods f, g and m are shown as; detachably supportedby a notchedguide plate 7", secured to the bearing plates f, and'by"cooperating bail f", the arms of which are pivoted on the rod i,

see Figs. 6, 7 and 10. .Thelow'er ends of' bifurcated so as to straddlethe rearends of said levers, and theyare providedwith pins i thatloosely rest in notches or' open seats formed in the rear ends of thesald levers if, g and m. By reference particularly to igs. 1 1, 12, 13and 15, it will be noted that" the lower selectin levers f ina directionfrom right toward the left, project succes- "sively farther and fartherforward, and at their rear ends, are correspondingly lengthened so 'astomaintain, ineach lever, the

" same relative length from front to rear end. Extending transversely'Ioyer the for:

wardly projectin ends of the lower selecting levers f, an under the rearends ofthe several sets of register bars c,'is a series of "eightparallel transposing bars f, that are {common tothe several registers,to the several sets of-register bars and to the'said single set or groupof lower selecting levers.

' These transposin bars. 1 are supported for vertical, paralle movementsby pairs of bell-cranks f mounted on rods f sup ported by the guideplate 6. Preferably also the lower arms of the bell-cranks f areconnected by links f As shown'in Fig. 14, the left hand bell-crank flimit the downward movements of the respective f is connected by a coilspring f 'to its i underlying link F, that serves to yieldingly hold theformer downward or in normal position.

Each transposing bar f has a single depending lug f and three upwardlyextended lugs f. The lugs 7 directly overlie the upturned forward endsof the lower selecting levers f and the lugs f directly underlie therear ends of corresponding register bars 0 of the three groups. Moredefinitely stated, in the arrangement shown, the upturned end of theright hand selecting lever f 'is arranged to engage the lug f of therearmost transposing bar f, and the lugs f of this rearmost transposingbar directly underlie the left hand register bars 0 of the three groups;and the left hand selecting lever' f is arranged to engage the lug f ofthe most forward transposing bar f, and the lugs f of this transposingbar are arranged directly below the right hand register bars 0 of thethree groups. Stated still in another way,'the lugs f are arrangedobliquely in one direction and the three rows of lugs f are alinedobliquely inthe other direction, and are so correlated to each other,and to the selecting levers f", and register bars 0, that the saidregister bars may be raised under movement of the typewriter carriagefrom the right toward the left, in succession from left toward theright, this action however, requiring the co operation of the so-calledregister selecting mechanism referred to above, and now furtherdescribed in detail.

The upwardly extended arms of the bellcrank levers m are pivotallyconnected to the rear ends of links m the front ends of which arepivotally attached to rods m, which tie together the upper ends ofplates m, the lower ends of which are secured to sleeves m looselyjournaled on a rod m", the ends of which are supported by the sides ofthe computer case 30. The sleeves m, plates m and rods m constituterocking frames that are capable of beingindependently moved, one by eachof the three bell-crank levers m. These frames are normally held intheir rearmost positions, shown in Fig. 12, by springs m attached'tobell-crank levers m and a fixed part of the .machine, and they areadapted to be rocked rearward, as shown in Fig. 13, by the engagement ofthe corresponding register selecting cam m with its cooperating lever mOn each rod m, are pivoted side side a plurality of small three armedbell-cranks m, one for each register bar. One arm of each bell-crank mis provided with a laterally projecting pin or stud m, a second armthereof extends downward and is limited in its movements, by a stop rodm of the rocking frame, and a third arm of each bell crank is connectedto a light coiled spring 7 m, the lower end of which is connected tomounted a correspondin group of so-calledcoupling fingers mhese couplingfingers m rest directly upon the studs m of the correspondingbell-cranks m, and each of these fingers is of a different length fromall the others. The lightsprings m serve to hold the rear ends ofcoupling fingers m clear of the lugs f on the transposing bars f whensaid fingers are moved rearward to operative positions, and said springsalso as sist in lifting the register bars a.

By reference to Figs 11, 12 and 13, it will be seen that the free endsof the coupling fingers m underlie rear ends of register bars 0 of thecorresponding group, and furthermore, that the free ends of saidcoupling fingers are so arranged that when they are rocked slightlyrearward, as shown in Fig. 13, the free end of each will directlyoverlie a corresponding lug f of a trans posing bar f", so that when atransposing bar is raised, the en aged couplin finger m will be raisedan the latter wil lift up the overlyin register bar 0, as shown in Fig.13. 0% course, only one group of coupling fingers m" will be movedrearward at any one time, and the other two groups of fingers will thenbe held in inoperative positions, shown in Figs. 11 and 12, in whichpositions it will be noted, the free ends of the coupling fingers m,stand forward of their cooperating lugs f so that said lugs will notengage said fingers when the transposing bar f is raised. Stated inanother way, the fingersv m when in their normal positions, shown inFigs. 11 and.12, do not lie far enough in the rear to be acted upon bycorrespondin lugs f of the transposing bars F; but w en a registerselector m, through its connections above described, moves a set ofcoupling fingers m", corresponding to one or the other of the registers,rearward, said fingers m will be in 0sttions shown in Fig. 13, eachfinger over ying its corresponding lug f and in such ition, that when atransposing bar g is raised to its uppermost position, by the decimalorder selecting mechanism, the engaged finger m will be raised andcaused to lift the corresponding overlying register bar 0, so that oneof its unit pins W111 be set by a depressed unit bar.

It has already been stated, that there is one group of these couplingfingers or intermediate devices for each register and cooperating groupof register bars, and that each group is controlled or renderedoperative by its corresponding register selecting cam m and itscooperating lever m.

The supporting blocks f which carry corresponding selecting dogs f andselecting cams m, are movable on their supporting rods 7 and f andhence, can be spaced apart as desired, .50 as to correspond with thespacing apart of the printed columns on the paper. Each registerselector or selecting cam m,

travels in a path of its own, and by the same or in ust the reversebfthe natural order of selection, such' selection depending entirely onthe order in which he register selecting cams m are positioned on thesupporting rods are added together, an

f and f. Asshown Fig. 6, the left hand end of the rod 5 is reduced at f,and the hubs of the bloc s f, see Fig. 7, are rovided with open notchesf, so that said locks f may be removed from said. rod or' appliedthereto, when moved to the'said reduced end portion f l With thearrangement of decimal order selecting mechanism and register selectorsblocks 7", which are numbered 1 and 3 on Fig. 4, for identification bythe operator, the operation will be changed to this extent, that thefigures will be printed on the left hand side of the printed sheet whenthe amounts are being accumulated on the right hand register, and viceversa.

The herein described improvement in the decimal order selectingmechanism, while it makes necessary the use of register selecting meansnevertheless affords simpler construction than that disclosed in thecompanion appllcation, because it provides for the use of a common orsingle set of register select-' ing levers, and a common or single setof so-' called transposing bars.

Under the heading Unit bars and their connections to numeral keys of thetypewriter, reference has already been made to devices for preventingtwonumeral keys being simultaneously depressed, and also for preventinga numeral from being printed in punctuatioi} spaces, the latter beingaccomfollows. When the typewriter plished as carriage is in such ositionthat the selector block f is in the a ding zone, the selector is eitherunder the forward end of a lever f or under lever 9; if under thelatter, the

' printing point on" the paper is where a puncdescribed, it is evidentthat cross footing1 /tuation mark should be printed between the be listemay be made, that is, figures Ina in a horizontal line on the printedthe sum added. For instance, a piece f work like this may be done:45.65;'16 3 2; 13.23; 5.02; .50; 1.00; 2274.20; 40,6:25 .82.In\theexample just iven eight numbers (g to do this work, it with willrequire eight supporting blocks f all of selecting'dogs f and selectingcamsm,

the same construction and arrangement so that for each decimal orderselecting dog thrown into action on the common group of selectinglevers, the same set of register ars will be acted upon, andconsequently, each of the severalnuntbers accumulated on the sameregister.

Since the'supporting blocks f are adjustable on the rod f, and aredetachably applied thereto, it is, of course, an easy matter to set thedifferent supporting blocks with their corresponding selecting dogs andregister selecting cams in positions for the various i kinds of work.

In the'drawings, see-particularlyFig. 4, the said supporting blocks fare so arranged, that when adding and ,listing numbers in columns, theywill be printed on the sheet in columns corresponding to the location ofthe re ister upon which the amounts are being added or accumulated. Forinstance, when the amounts are being accumulated on the right handregister, the numbers will be printed on the right hand side of theprinted sheet, and vice versa. By interchang'ing the right and the lefthand sheet an spondingrod 9 w ich in turn depresses t e rearW'ardlyextending arm of bell-crank lever 9 the long upwardly extending arm ofwhich is connected to the rear end of link 9 drawing the latter towardthe rear of the machine; the forward end of link g is connected to theupper free end of arm 9 on rock shaft 9 (Fig; 3), rocking the latter andthereby forcing the upwardly curved free end of lock arm 9 attached torock shaft 9 upward and in between twoof the rockers, or cam blocks b onthe forward side of cross frame b, which takes up all the play betweensaid-rockers, so that a numeral key cannot be depressed, or a numeralprinted, until selector f passes from under lever g to the next lever fwhen all the parts just described return to normal positions under thetension of a coiled spring 9 shown in Fig. 17, one end of which isattached to the distinguish the grouping of Selector f lifts uptheforcurved lock arm 9 and the other end to the of figures, thus, from111, 222, to 11, 122, 200, it can be 'done by crossing rods 9% with rodsf next to them, so that the upper ends of the latter will be underlevers g, and rods 9 under legers f, the lower ends of rods 9 and]?regfmining connected to their re- =spectiye leveis g and f tion with aplurality of registers having decimal orders, of register selectors,decimal order selectors, and means common to all of said registerselectors and send decimal order selectors, for transmitting theselective action of the decimal order selectors to any selected one ofthe various registers to the exclusion of others of said registers.

2. In a. recording computing machine, the combination with a registerhaving decimal orders, 01 register actuating devices, decimal orderselecting means normally inoperative, and means for selectivelyconnecting said decimal order selecting means with the registeractuating devices.

3. In a recording computing machine, the

combination with a plurality of registers havin decimal orders, ofgroups of register actuating devices, decimal order selecting meansnormally inoperative, and register seheating means for connecting saiddecimal order selecting means with any desired group of registeractuatin devices. 7

4. In a computin machine, the combination gith a plurality of registershaving decimal orders, of groups of preliminary representation devices,decimal order selecting means, and register selecting devices forconnecting any desired group of preliminary representation devices withsaid decimal order selecting means. 1

5. In a computing machine, the combination with a plurality of registershaving decimal orders, of groups of preliminary representation devices,decimal order selecting means, and register selecting devices forbringing any desired group of preliminary representation devices underthe control of the decimal order selecting means.

6. In a computer having a plurality of registers, the combination withgroups of preliminary representation devices, of a single series of keysrepresenting numerical (or digit) values, decimal order selecting means,and register selecting devices for connecting the keys to any group ofpreliminary representation devices.

7. In a combined ty writer and computin machine, the com ination with aplura ity of registers having decimal orders, of register actuatingdevices, a traveling paper supporting carriage, decimal order selectingmeans carried by said carria e, and traveling re ister actuators, each 0which travels in a p ane or path that is difl'e'rent from the plane orthe path of the other, for determin ing which register shall be underthe control of the decimal order selecting means.

8. In a combined typewriter and computing machine, the combination witha traveling carriage, a plurality of registers having decimal orders, aregister selectin lever and cam block for each register, sai selectinlever and cam block having motion to and fro relatively to each other,decimal order selecting means, and connections for bringing the decimalorders of any register under control of its decimal order selectingmeans.

9. In a computing machine, the combination with a plurality of registershaving decimal orders,,of a group of preliminary representation devicesfor each register, adapted to be independently set, and decimal orderselectin mechanism which is, in part, common to al of said preliminaryrepresentation devices, but includes a decimal order selector proper,for each grou of preliminary representation devices, an re sterselectors o erative to determine the or er in which said decimal orderselecting mechanism will operate upon the difi'erent groups. ofpreliminary representation devices.

10. In a com uting machine, the combine: tion with a p urality ofregisters having decimal orders, of a group of preliminaryrepresentation devices for each register, adapted to be independentlyset; decimal order selecting mechanism com rising, a

group of selecting levers, severa selecting v i/ 7 dogs operativethereon, and transposing bars, common to the several groups ofpreliminary representation devices; and register. selecting mechanism,operative to de- 'termine the order in which said decimal orderselecting mechanism will operate upon the different groups ofpreliminary repre sentation devices.

11. In a combinedv typewriter and computing machine, said typewritinmechanism having key controlled carriage, t e combination with a decimalorders, of a group of preliminary representation devices for eachregister, a common set of numeral keys with connections forindependently setting said reliminary representation devices, decimalorder selecting mechanism comprising, a. group of selecting leverscommon to all registers, several selecting dogs operative thereon andcarried by said typewriter carriage,

transposing bars subject to said selecting plurality of registers having120 actuating mechanism, including a register selector and a decimalorder selector rigidly connected together and mounted for commonmovements into operative and into inoperative positions.

13. In a computing machine, the combination with a plurality ofregisters, of register actuating mechanism, a common group of selectinglevers, some of said levers connected to select the decimal orders ofany register and others of said group connected to select the particularregister to be actuated, and a register selector and a decimal orderselec tor, for each register, and whichdecimal order, selectors areoperative, in succession, on

d the said common group of selecting levers.

14. In a computing machine, the combination with a plurality ofregisters having decimal orders, of decimal order selectors, a

register selector and cooperating lever for each register, and devicesactuated by said lever for, connecting the decimal order selector withits orresponding register.

15. In a com uting machine, the combinationwith a plurality of registershaving decimal orders, of a plurality of decimal order selectors, aregister selector for each register, register actuating means, anddevices intermediate said register actuating means m ld said registerselector, for transmitting t e selective action of the decimal orderselector to the register actuating means of the register thatcorresponds to the register selector in action. a

16. In a computing machine, the combination with a plurality ofregisters having decimal orders, of register actuating devices, aplurality of decimal order selecting dogs,

devices common to all of said register actuating devices and saidselecting dogs, for

transmitting the selective action of the latter to the former, aregister selecting cam and cam lever for each register, a rocking framefor each cam lever, levers pivoted on said rocking frame andcorresponding to the decimal orders of a register and adapted to connectthe register actuating devices with the decimal order selectingmechanism.

17. In a com uting machine, the combina tion with a, p'urality 'ofregisters having decimal orders, of register actuating devices, aplurality of decimal order selecting dogs, selecting levers common toall of said dogs, transposing bars common to all of said dogs andregisters, and means actuated by the numeral printing devices, andmeanscom mon to all of the decimal order selectors for preventing theprinting of numerals in punctuation spaces. a

19. In a recording computing machine, the combination with a pluralityof registers having decimal orders, of a plurality of decimal orderselectors, numeral printing devices, and means common to all of saiddecimal order selectors for preventing the printing of numerals inpunctuation spaces.

20. In a recording computing machine, the combination with a, pluralityof registers having decimalorders, of a plurality of decimal orderselectors, numeral keys and printing devices, and punctuation-spacekeylocking devices common to all of said decimal order selectors. r i

21. In a recording computing machine, the combination with a pluralityof registers having'decimal orders, of a decimal order selector for eachregister, numeral keys, printing devices, and punctuation-spacekeyocking devices common to, and operated by, all of said decimal orderselectors. I

22. In a recording computing machine,the combination With aplurality ofregisters having decimal orders, of a decimal order selector for eachregister, numeral keys,

rint'ing devices, punctuation-space keyock'rn devices common to, andoperated by, all 0 said decimal order selectors, and means for arrangingsaid locking devices with respect to the decimal order selection, so asto vary the location of the punctuation of selectors on said carriageeffective on said jacks, a plurality of registers selectively connectible to said iacks, a device for preventing the simultaneousoperation oftwo keys, and

.a' single comma lock comprising a dog cooperating with saidsimultaneous prevention device and connected to one or more of saidjacks.

24. In a computing machine, the combina tion with a traveling carriageand a single "series of denominational jacks, of a plurality ofselectors ,lsettable independently of each other on said carriage, aplurality of registers, re ister selecting devices connected to said jacs, a device for preventing the simultaneous operation of two keys, and asingle comma lock, comprising a dog cooperating with said simultaneousprevention devices and connected to one or more of said acks.

